I have both, but I went the other way, my ZC is drilled pin under bridge, mb out about 3 inches right of the thumb, and i wanted a red zone to be a little longer/stronger, so i went pin above bridge, mb a little closer to thumb.

I'd say drilled the same, with the same cover, there's not MUCH difference in the two. My red does go longer and has more snap, but they're very similar as far as hit/carry/forgiveness.

I have my ZC at 600 plus polish, which gets it down the lane a ways, and the pin down and mb out, it makes a nice arc to the pocket, whereas the red zone i have 4000 abralon on it. goes down further than the zc and snaps in.

overall, i think the balls are fairly similar, the red zone being a little stronger overall, but with the right drill pattern, i think you could make the red zone a lot more controllable. recommend them both, always loved both of them.

hope this helped.

Matt